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Achieving High Performance of Lithium Metal Batteries by Improving the Interfacial Compatibility between Organic and Inorganic Electrolytes Using a Lithium Single-Ion Polymer
Ma, Xiang1; Liu, Mian1; Qi, Yujia2; Li, Xinyuan2; Wang, Fei1; Liu, Hongmei1; Wu, Qingping3; Guan, Xiang; Xu, Jun1
2022-11-03
AbstractComposite solid electrolytes (CSEs) containing polymer electrolytes and inorganic particulate fillers have the potential to attain excellent electrochemical performance and good interfacial contact with Li metal. Nevertheless, the performance of CSEs is still constrained by the low Li+ transference number (tLi+) and problems at the polymer- ceramic interface. In this study, we present a CSE with high tLi+ and promising comprehensive performance, in which the surface of LLZTO micron particles was grafted by lithium (4-styrenesulfonyl) (trifluor-omethanesulfonyl) imide (LiSTFSI). The existence of LiSTFSI on the surface of modified particles was confirmed by FTIR spectroscopy and X-ray photoelectron spectroscopy measurements. These surface-modified particles were uniformly dispersed in the poly-(vinylidenefluoride-hexafluoropropylene) (PVDF-HFP) matrix for the improved interfacial compatibility, by which CSEs (PFL@LCSE) were formed. Li@LLZTO particles were found by X-ray diffraction spectra to decrease the crystallinity of PFL@LCSE and to increase the ionic conductivity. Simultaneously, LiSTFSI on the surface of Li@LLZTO was able to restrict the migration of anions and improve the concentration polarization phenomenon inside the battery. PFL@LCSE exhibits high ionic conductivity (1.40 x 10-4 S center dot cm-1 at 30 degrees C), high tLi+ (0.59 at 60 degrees C), good mechanical strength, and remarkable ability to inhibit Li dendrite growth. Li/Li symmetrical and LFP/Li full batteries were assembled and demonstrated good cycling performance. It indicates that improving the interfacial compatibility between organic and inorganic electrolytes is a promising strategy for enhancing the performance of CSEs.
Keywordcomposite solid electrolyte interfacial compatibility garnet modification lithium single-ion polymer lithium dendrite
DOI10.1021/acsaem.2c02718
Source PublicationACS APPLIED ENERGY MATERIALS
ISSN2574-0962
Pages10
Corresponding AuthorXu, Jun(xujun@ecust.edu.cn)
Indexed BySCI
WOS IDWOS:000880843300001
Language英语
Funding Projectproject of China Petroleum Engineering Corp., Ltd. (CPEC) ; [2021ZYGC-01-01]
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
PublisherAMER CHEMICAL SOC
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Document Type期刊论文
Identifierhttp://124.16.212.251/handle/2HOD01W0/16791
Collection中国科学院重庆绿色智能技术研究院
Corresponding AuthorXu, Jun
Affiliation1.East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China
2.Commissioning Operat Co China Petr Pipeline Engn C, Langfang 065000, Peoples R China
3.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
Recommended Citation
GB/T 7714
Ma, Xiang,Liu, Mian,Qi, Yujia,et al. Achieving High Performance of Lithium Metal Batteries by Improving the Interfacial Compatibility between Organic and Inorganic Electrolytes Using a Lithium Single-Ion Polymer[J]. ACS APPLIED ENERGY MATERIALS,2022:10.
APA Ma, Xiang.,Liu, Mian.,Qi, Yujia.,Li, Xinyuan.,Wang, Fei.,...&Xu, Jun.(2022).Achieving High Performance of Lithium Metal Batteries by Improving the Interfacial Compatibility between Organic and Inorganic Electrolytes Using a Lithium Single-Ion Polymer.ACS APPLIED ENERGY MATERIALS,10.
MLA Ma, Xiang,et al."Achieving High Performance of Lithium Metal Batteries by Improving the Interfacial Compatibility between Organic and Inorganic Electrolytes Using a Lithium Single-Ion Polymer".ACS APPLIED ENERGY MATERIALS (2022):10.
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